Physical Characteristics
| Surface Area (Acres) | 35 |
| Maximum Depth (ft) | 11 |
| Mean Depth (ft) | — |
| Shoreline (miles) | — |
| Bottom Composition | 60% sand, 10% gravel, 0% rock, 30% muck |
| Water Clarity — Secchi Depth (ft) | — |
| Trophic Status | — |
| Drainage Basin | DRAINAGE |
| Lake Class | flowage |
| Public Access | — |
| Township | — |
| GPS Coordinates | 43.11140° N, 88.45380° W |
| WBIC (DNR ID) | 850100 |
Fish Species
3 species documented
AbundantCommonPresentRare
| Species | Abundance | Last Survey |
|---|---|---|
| Panfish | Common | — |
| Largemouth Bass | Present | — |
| Northern Pike | Present | — |
Boat Landings
1 landing
| Name | Type | Ramp | Trailers | Fee | ♿ |
|---|---|---|---|---|---|
| Upper Oconomowoc Lake Access | RAMP | — | Greater than 25 | Yes | No |
Invasive Species
Invasive species have been documented in or near this lake. Please clean, drain, and dry all watercraft and equipment before leaving to prevent spread.
| Species | Status | First Detected |
|---|---|---|
| Curly-Leaf Pondweed | Confirmed | — |
| Eurasian Water-Milfoil | Confirmed | — |
| Purple Loosestrife | Confirmed | — |
| Zebra Mussel | Confirmed | — |
Data sourced from Wisconsin DNR lake surveys. Last scraped: 4/30/2026.